US 5,398,716 AGranted

Structure of air compressor waste drain valve

OwnerChia-Tsung Hsuinventor

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Abstract

An air compressor waste drain valve having an automatic drain hole and a dust collector provided respectively at the center and circumference of the inside base of the drain valve so that the moisture produced by the air compressor can be stored in the dust collecting tank of a dust collector and the dust produced by the air compressor can pass through an overflow port of a hollow cover plate. After the moisture has accumulated to a sufficient level, the water will be drained automatically through the drain hole and the accumulated dust can be drained for collection by means of opening the valve, so as to achieve the respective drainage effort for water and dust. On the top of the overflow port, an air pressure hose is provided and fixed on the opening of a hole having a check valve inside which is connected with an air inlet, so that when the dust is adhered on the filter located in the overflow port, the air from the air inlet opens the check valve and a strong air pressure is applied through the nozzle of an air pressure hose to the filter to remove the dust.

Claims3

Dependent claims

An improved structure for an air compressor waste drain valve actuated by a float ball driving mechanism by accumulation of water to make a float ball ascend for actuating a connection rod mechanism to drive a piston rod upwards to open the drain valve so as to achieve automatic water drainage comprising:

a base provided with an automatic drain hole at a center position having a cushion on a top of the drain hole, a dust collector provided at a circumference of the automatic drain hole having an inclined dust collecting tank;
first means connecting the automatic drain hole with a drain pipe connector arranged at a side of the base;
second means connecting the inclined dust collecting tank with a valve located in a dust drain hole, and with an air intake pipe connector of an air inlet;
a plurality of fixing rods attaching the float ball driving mechanism to the base so as to locate a semi-spherical piston head on the automatic drain hole for watertight operation;
and
an air pressure hose having a nozzle located on top of an overflow port and a check valve connected with an air inlet;
whereby waste water and dust accumulating in the structure can be separately drained, while preventing any blockage of the automatic drain hole.

4 more elements

Dependencies are inferred from the claim text.